664503095 has 4 divisors (see below), whose sum is σ = 797403720. Its totient is φ = 531602472.

The previous prime is 664503083. The next prime is 664503109. The reversal of 664503095 is 590305466.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 590305466 = 2 ⋅295152733.

It is a cyclic number.

It is not a de Polignac number, because 664503095 - 2⁴ = 664503079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66450305 + ... + 66450314.

It is an arithmetic number, because the mean of its divisors is an integer number (199350930).

Almost surely, 2^664503095 is an apocalyptic number.

664503095 is a deficient number, since it is larger than the sum of its proper divisors (132900625).

664503095 is a wasteful number, since it uses less digits than its factorization.

664503095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132900624.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 664503095 is about 25777.9575412793. The cubic root of 664503095 is about 872.6344136013.

The spelling of 664503095 in words is "six hundred sixty-four million, five hundred three thousand, ninety-five".